Sudoku - Small Rest Privacy Policy

Effective October 20, 2026.

Small Rest Studio (operator: 김종현) explains below the information processed while you use Sudoku - Small Rest and the choices available to you. This policy reflects the features currently provided by the app and will be updated if the way data is processed changes.

1. Game information stored on your device

To provide the game and restore your progress, the app stores on your device your puzzle progress, entered numbers and notes, hint usage history, play time, completion records and crowns, favorites, daily check-ins and reward-claim history, leaf balance, owned decorations, ad-reward processing state, pet position, and settings.

The app does not use separate sign-up or a developer-operated account server. The game records above are not automatically sent to a developer server or automatically synchronized across multiple devices. The current time and battery level displayed on screen are also not sent to the developer. Information processed by advertising service providers is described in Section 2 below.

2. Advertising and external services

The app uses Google's AdMob (Google Mobile Ads SDK) and the User Messaging Platform (UMP) for advertising consent management. Release versions are connected to real ad units. Whether ads can be served depends on factors such as ad inventory, app approval, and the user's consent status. Separately identified internal test versions use test ads, and SDK network communication may still occur while test ads are being used.

The Google advertising SDK may automatically collect and share the following information to provide ads, analyze advertising and service performance, and prevent abuse:

• IP address and approximate location inferred from it

• Information about interactions with the app and ads, such as app launches, taps, and video views

• Diagnostic information related to app and SDK execution, performance, and errors

• Device identifiers such as the Android advertising ID and app set ID, and, where applicable, identifiers related to accounts signed in on the device

Google processes this information. The specific scope of processing may vary depending on device settings, the way ads are served, region, and the user's consent status. Google states that data transmitted by its advertising SDK is encrypted using TLS. The app does not use location permission to directly collect GPS location or bulk-collect contacts or photos.

Where consent is required by region or circumstance, the app provides Google's consent process. If there are choices you can change, you can review them in “Ad privacy settings” in the app's settings. You can also reset or delete the advertising ID in Android settings. If ads cannot be served, rewards that depend on ads may be limited, but basic puzzle play remains available.

Google services may process data on servers outside the Republic of Korea. Information about where Google processes data and its retention and deletion practices is available in the policies below.

Google Privacy Policy

https://policies.google.com/privacy?hl=en

Google advertising SDK data processing information

https://developers.google.com/admob/android/privacy/play-data-disclosure?hl=en

3. In-app purchases

In the current version 1.0.2, the app does not provide in-app purchases or purchase restoration. If a version that supports in-app purchases is provided, this policy will be updated to explain the processing of purchase-related information.

4. Backup and import

If you choose the backup feature, the app exports game progress, records, leaves, owned decorations, settings, and related data to a JSON file. The backup is saved to a location you choose and is not automatically sent to the developer. Backup files do not include card numbers or Google purchase tokens.

From version 0.2.3, newly exported backups are encrypted with a password you choose. The password is not saved or sent to the developer and cannot be recovered if forgotten. Backups exported by older versions are not encrypted; store them securely and import only your own trusted files. If you choose an external storage service such as Google Drive, that service's data processing policy also applies. Before importing a file, the app keeps a copy of the previous records inside the app so the import can be undone.

5. Retention period and deletion

Game information stored on the device is retained until you delete it. “Reset play data” in the app settings resets puzzle records, settings, and related data, but keeps the leaf balance, owned items, and some reward-claim history.

To delete all information stored inside the app, you can clear the app's storage data in Android settings or uninstall the app. The app does not use Android automatic backup. Separately exported backup files or copies in external storage are not deleted merely by uninstalling the app, so please delete them directly from the location where they are stored.

Advertising and service information processed by Google is subject to Google's retention and deletion policies. The developer cannot remotely view or delete game records that exist only on your device.

6. Email inquiries

If you send an inquiry email, we receive the reply address, the name shown in the email, the inquiry content, and any materials you attach. This information is used only to respond to the inquiry, investigate errors, and handle user requests. Inquiries are received and stored through Google Gmail, and Google's data processing policy applies.

Information is deleted without delay once the purpose of handling the inquiry has been fulfilled. Information that must be retained under applicable law is kept for the legally required period and then deleted. When contacting us, please do not send unnecessary sensitive information such as a resident registration number, password, or full card number.

You may use the email address below to request access to, correction of, deletion of, or restriction of processing of your personal information held by the developer. Requests are handled in accordance with applicable law after confirming your identity to the extent necessary. Game information that exists only on your device can be managed directly using the methods in Section 5 above.

7. Privacy protection measures

Game information is stored in the app's on-device storage and is not sent to a separate developer game-data server. Optional usage statistics are described in the Firebase Analytics section below. Access to inquiry emails is limited to what is operationally necessary. Please take care when choosing whom to share an exported backup file with and where to store it.

8. Intended users and policy changes

Sudoku - Small Rest is intended for teenagers and adults and is not designed primarily for children under 14. The app does not ask users for their date of birth or identification documents.

If there is a material change to features, external services, or data processing, notice will be provided through this page or an in-app notice before the change takes effect, and the effective date will be updated. Where a separate consent procedure is required by law, that procedure will be applied.

9. Privacy inquiries

Service name: Sudoku - Small Rest

Developer display name: Small Rest Studio

Operating name: 작은쉼 스튜디오 · SRS (Small Rest Studio)

Operator and privacy contact: 김종현

Email: srs260303@gmail.com

10. Optional Firebase Analytics, including changes in version 1.0.2

Starting with version 1.0.0, the app can use Google Analytics for Firebase to understand usage and improve quality. Collection is off by default and begins only if you allow “Share usage statistics” in Settings. Earlier versions do not include this feature. Starting with version 1.0.2, the app offers this choice at first launch. You can decline, use all game features and change your choice at any time.

For users who opt in, version 1.0.2 also records when a new game starts (game_start) or ends (game_complete), together with its difficulty. The app does not send puzzle entries, save files or your leaf balance. It does not send games played before consent retroactively. Turning sharing off stops collection of new analytics events.

With consent, Google may process app opens, sessions and engagement time, device, operating system and app information, an app instance identifier, and approximate location inferred from an IP address. Data is encrypted in transit using TLS. The developer uses aggregate analytics reports and does not set a separate user account ID. Puzzle contents, leaf balances and backup files are excluded from analytics.

Advertising ID collection and consent for ad personalization are disabled for this analytics feature. AdMob advertising is covered by section 2. Analytics sharing and ad privacy choices are managed separately.

Turning off usage sharing in Settings resets Analytics data and the app instance identifier on this device. It does not immediately delete information already sent to Google. Google’s retention, deletion and international processing practices apply. Contact the email address in section 9 with questions.

Google Privacy Policy: https://policies.google.com/privacy?hl=en

Firebase privacy and security: https://firebase.google.com/support/privacy